Numerical and experimental analysis of grouted hollow block masonry under compression
DOI: https://doi.org/10.3846/2029882X.2013.811784Abstract
Highly hollow masonry units, which allow reducing the weight of masonry constructions and improving heat and sound insulation qualities, are commonly used in masonry construction. Filling the hollows with concrete, or concrete with light additives, results in complex masonry. Overall performance of such masonry is affected by initial stresses, which are caused by shrinkage deformations of different infill concrete and masonry units. Behaviour of infill concrete and concrete blocks is analysed by applying numerical detailed micro modelling. Experiments revealed that masonry deformations of blocks with concrete filled hollows are similar to those of longitudinal deformations of infill concrete samples. σ-ε relations were received through numerical micro modelling and compressive strength of masonry match values were estimated during experiments.
Santrauka
Straipsnyje pateikiama betoninių blokų su betonu užpildytomis tuštymėmis gniuždomojo mūro įtempių būvio analizė. Mechaninėms tokio mūro savybėms įtakos turi pradiniai įtempiai, kuriuos sukelia skirtingos užpildymo betonu ir mūro gaminių traukiosios deformacijos. Užpildymo betono ir betoninių blokų elgsena analizuojama taikant tikslų skaitinį mikromodeliavimą. Eksperimentais nustatyta, kad blokų su užpildytomis betonu tuštymėmis mūro deformacijos artimos užpildymo betono deformacijoms. Skaitiniu modeliavimu gautos σ-ε priklausomybės ir gniuždomasis mūro stipris gerai sutampa su eksperimentais nustatytomis reikšmėmis.
Reikšminiai žodžiai: tuštymėtumas, betono mūro gaminiai, užpildymo betonas, traukumas, skaitinis modeliavimas
Keywords:
hollowness, concrete masonry units, concrete infill, shrinkage, numerical modellingHow to Cite
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Copyright (c) 2013 The Author(s). Published by Vilnius Gediminas Technical University.
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Copyright (c) 2013 The Author(s). Published by Vilnius Gediminas Technical University.
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This work is licensed under a Creative Commons Attribution 4.0 International License.